Color Contrast MCP Server

by mrfentmen Your server? Claim it

local only

Color Contrast MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 113 installs a week from npm. Last commit 8 Nov 2026.

WCAG contrast ratios, AA/AAA checks and accessible colour suggestions for hex pairs - fully local.

Installs per day peak 248 · avg 22 · -80% w/w

a month agotoday

113

Installs / week

npm · @mrfentmen/color-contrast-mcp

Stars

0 open issues

8 Nov 2026

Last commit

3 releases in 90 days

—

License

TypeScript

Nothing serious here today

Today is the operative word: we check Color Contrast MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add color-contrast-mcp -- npx -y @mrfentmen/color-contrast-mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "color-contrast-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@mrfentmen/color-contrast-mcp"
      ]
    }
  }
}

~/.codex/config.toml

[mcp_servers.color-contrast-mcp]
command = "npx"
args = ["-y", "@mrfentmen/color-contrast-mcp"]

.cursor/mcp.json

{
  "mcpServers": {
    "color-contrast-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@mrfentmen/color-contrast-mcp"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "color-contrast-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@mrfentmen/color-contrast-mcp"
      ]
    }
  }
}

Alternatives to Color Contrast MCP

same job, measured the same way

Contrast Checker MCP

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MCP - WCAG 2.1 color contrast checker - contrast ratios, compliance and accessible color suggestions

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ContrastKit

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4 tools answering

A11yScope

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WCAG 2.2 AA accessibility checks for pages and HTML, run locally in headless Chrome.

79 installs/wk local only

WCAG AAA contrast for two hex colors

by sadri-dridi

WCAG AAA contrast for two hex colors

31 tools answering

WCAG AA contrast for two hex colors

by sadri-dridi

WCAG AA contrast for two hex colors

31 tools answering

Contrast ratio for two hex colors

by sadri-dridi

Contrast ratio for two hex colors

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Chart Color Audit

by socraticstatic

CI-friendly accessibility audit for chart color palettes: WCAG contrast, CVD simulation, OKLab ΔE.

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Geo Tool Check

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Is this page readable for AI search? Crawler access, structure and citability checks, runs locally.

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Color Contrast MCP — questions

Answers built from our own checks of this server.

Why is there no uptime for Color Contrast MCP?

Color Contrast MCP runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @mrfentmen/color-contrast-mcp was installed 113 times last week.

How do I connect Color Contrast MCP?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls @mrfentmen/color-contrast-mcp straight from npm; nothing to host, nothing to sign up for.

How many people use Color Contrast MCP?

The npm package @mrfentmen/color-contrast-mcp was installed 113 times in the last week. Week over week that is -80%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Color Contrast MCP open source?

We cannot say either way: written in TypeScript and 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.